How many chambers are in a kangaroo's heart?

Answer 1

Fish hearts have 2 main chambers: the atrium and the ventricle. Fish have the simplest hearts of all the vertebrates.

Answer 2

Marsupials, like all mammals, have four heart chambers.

Answer 3

Like all mammals, the kangaroo's heart has four chambers.

Answer 4

A platypus has a four-chambered heart. Platypuses are mammals, and all mammals have a four-chambered heart,

Answer 5

As a mammal, a platypus has a four-chambered heart.

Answer 6

False, A platypus is one of the only mammals to lay eggs. They don't follow the rules of nature so why should they follow the "four chamber heart for all mammals" rule.